xenharmonic (microtonal wiki)

Omnitetrachordal MOS scale
12L+5s
17 tones (7+3+7)

Helmholtz / schismatic

P = 3.8459060415 (L=256/243, s=531441/524288)
Q = 29.4213422908 (4/3 = 5L+1.5s)

L = 70.59 to 100.00 cents (90.22 cents @ P, 98.60 cents @ Q)
s = 0.00 to 70.59 cents (23.46 cents @ P, 3.35 cents @ Q)

9/8 = 2L+s (200.00 to 211.76 cents)
4/3 = 5L+2s (494.12 to 500.00 cents)
generator = 4/3

notable EDOs: 29, 41, 46, 53, 65

symmetric mode: LsLLLsLLsLLsLLLsL

all modes:

	`LsLLLsL LsL LsLLLsL`
	`sLLLsLL sLL sLLLsLL`
	`LLLsLLs LLs LLLsLLs`
`LLs LLsLLsL LLsLLsL`	`LLsLLsL LsL LLsLLsL`
`LsL LsLLsLL LsLLsLL`	`LsLLsLL sLL LsLLsLL`
`sLL sLLsLLL sLLsLLL`
`LLs LLsLLLs LLsLLLs`		`LLsLLsL LLsLLsL LLs`
`LsL LsLLLsL LsLLLsL`		`LsLLsLL LsLLsLL LsL`
`sLL sLLLsLL sLLLsLL`		`sLLsLLL sLLsLLL sLL`
`LLs LLLsLLs LLLsLLs`		`LLsLLLs LLsLLLs LLs`
`LsL LLsLLsL LLsLLsL`		`LsLLLsL LsLLLsL LsL`
`sLL LsLLsLL LsLLsLL`		`sLLLsLL sLLLsLL sLL`
		`LLLsLLs LLLsLLs LLs`
	`LLsLLsL LLs LLsLLsL`	`LLsLLsL LLsLLsL LsL`
	`LsLLsLL LsL LsLLsLL`	`LsLLsLL LsLLsLL sLL`
	`sLLsLLL sLL sLLsLLL`
	`LLsLLLs LLs LLsLLLs`